ruthenium(IV) oxide; sodium hypochlorite in tetrachloromethane 47 h;

1: 0 °C / Irradiation 2: Br2, NaOH / 0 - 50 °C 3: SOCl2 / Heating 4: Heating 5: NaOH / methanol / Heating View Scheme

1: NaOBr, H2O / dioxane / 4 h / 0 - 50 °C 2: 99 percent / 0.5 h / Heating 3: NaOH / methanol / 1 h / Heating View Scheme

1: 1.) tri-n-butyltin hydride, azobis(isobutyronitrile), 2.) NaOH / 1.) 130 deg C, 76 h, 2.) H2O, heating, 2 h 2: 93 percent / diethyl ether / 0.5 h / -20 °C 3: 62 percent / Clorox/NaOCl, RuO2*2H2O / CCl4 / 47 h View Scheme

1: 93 percent / diethyl ether / 0.5 h / -20 °C 2: 62 percent / Clorox/NaOCl, RuO2*2H2O / CCl4 / 47 h View Scheme